People

Rich Lundgren - Applied graph theory and combinatorial matrix theory.
http://www-math.cudenver.edu/~rlundgre/

Pirzada Shariefuddin - Graph theory and applications.
http://www.geocities.com/dharwadker/pirzada/

Bela Bollobas - Functional analysis, combinatorics and graph theory.
http://www.msci.memphis.edu/faculty/bollobasb.html

Gordon Royle - Algebraic graph theory.
http://www.csse.uwa.edu.au/~gordon/

Hubert de Fraysseix - Topological graph theory and combinatorics.
http://www.ehess.fr/centres/cams/person/hf/index.html

Stephen C. Locke - Graph theory and algorithms.
http://www.math.fau.edu/locke/

Dan Archdeacon - Topological graph theory, combinatorics, theoretical computer science.
http://www.emba.uvm.edu/~archdeac/

Keith Edwards - Harmonious colourings and achromatic number.
http://www.maths.dundee.ac.uk/~kedwards/

Julien Moncel - Identifying codes in graphs, combinatorics, graph theory and computer science.
http://www.g-scop.fr/~moncelj/

Erdos Number Project - List of people with Erdos number at most 2.
http://www.oakland.edu/enp/

Fabien de Montgolfier - Modular decomposition, graph theory and algorithms.
http://www.liafa.jussieu.fr/~fm/

Ashay Dharwadker - Algebra, topology, graph theory and theoretical computer science.
http://www.geocities.com/dharwadker/profile.html

David Penman - Random graphs, computational combinatorics.
http://www.essex.ac.uk/maths/staff/penman/

Binh Minh Bui Xuan - Graph theory, graph algorithms and computation.
http://www.lirmm.fr/~buixuan/

Graph Theory White Pages - Directory of graph theorists maintained by Daniel P. Sanders.
http://www1.cs.columbia.edu/~sanders/graphtheory/people/

Tom Whaley - Formal development of programs, Steinhaus graphs, parallel computing.
http://home.wlu.edu/~whaleyt/